Module · DevOps Engineer

Terraform

Infrastructure as code: write it, plan it, apply it, destroy it.

5 topics6 interactive tasks

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TOPIC 01

Init & Plan

HCL, providers and the plan that predicts every change.

What you'll practice

Write Your First Configuration — guided · beginner

A command you'll meet

mkdir ~/infra

Open any task below to get the full step-by-step walkthrough — every command is explained, and the lab validator checks what you actually built.

Hands-On Tasks in This Topic (1)

beginner

Guided Task

Write Your First Configuration

Terraform turns .tf files into real infrastructure. Write a configuration that declares an S3 bucket, initialize the provider and generate a plan — the read-only preview every change should start with.

Environment: terraform 1.7Launch Lab ⚡

TOPIC 02

Apply & State

Turning plans into real resources — and tracking them in state.

What you'll practice

Apply the Configuration — practice · beginner

A command you'll meet

cd ~/infra

Open any task below to get the full step-by-step walkthrough — every command is explained, and the lab validator checks what you actually built.

Hands-On Tasks in This Topic (1)

beginner

Practice Task

Apply the Configuration

terraform apply executes the plan and writes what it created into terraform.tfstate — the file Terraform uses to remember what belongs to it.

Environment: terraform 1.7Launch Lab ⚡

TOPIC 03

Destroy

Infrastructure as code cuts both ways.

What you'll practice

Destroy It All — practice · beginner

A command you'll meet

cd ~/infra

Open any task below to get the full step-by-step walkthrough — every command is explained, and the lab validator checks what you actually built.

Hands-On Tasks in This Topic (1)

beginner

Practice Task

Destroy It All

The most underrated Terraform command. Destroy everything the module created and confirm the state is empty — the same reflex that keeps cloud bills at zero.

Environment: terraform 1.7Launch Lab ⚡

TOPIC 04

Modules

Package resources once and reuse them in every environment.

What you'll practice

Wire Up a Bucket Module — practice · intermediate

A command you'll meet

mkdir ~/tf-modules/modules/s3

Open any task below to get the full step-by-step walkthrough — every command is explained, and the lab validator checks what you actually built.

Hands-On Tasks in This Topic (1)

intermediate

Practice Task

Wire Up a Bucket Module

Copy-pasted .tf files do not scale — teams package resources into modules and call them once per environment. Lay out a bucket module, wire the root configuration that calls it, then init and apply so the bucket lands in state.

Environment: terraform 1.7Launch Lab ⚡

TOPIC 05

State, Backends & Guardrails

Where the state lives, and what happens to your infrastructure when you press the wrong button.

What you'll practice

Configure a Remote Backend — practice · intermediate
Guard a Bucket with a Lifecycle Rule — challenge · advanced

A command you'll meet

terraform init

The state file is the memory of your infrastructure. Open the task below for the full walkthrough.

Hands-On Tasks in This Topic (2)

intermediate

Practice Task

Configure a Remote Backend

Local state belongs to one laptop and disappears with it. Move it to an S3 bucket with locking so a whole team can share one source of truth.

Environment: ubuntu:24.04Launch Lab ⚡

advanced

Challenge

Guard a Bucket with a Lifecycle Rule

Some infrastructure must never be destroyed by a stray command. Declare a bucket with a prevent_destroy lifecycle rule and apply it.

Environment: ubuntu:24.04Launch Lab ⚡